221367068157 has 4 divisors (see below), whose sum is σ = 295156090880. Its totient is φ = 147578045436.

The previous prime is 221367068149. The next prime is 221367068161. The reversal of 221367068157 is 751860763122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 221367068157 - 2³ = 221367068149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221367068257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36894511357 + ... + 36894511362.

It is an arithmetic number, because the mean of its divisors is an integer number (73789022720).

Almost surely, 2^221367068157 is an apocalyptic number.

It is an amenable number.

221367068157 is a deficient number, since it is larger than the sum of its proper divisors (73789022723).

221367068157 is an equidigital number, since it uses as much as digits as its factorization.

221367068157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73789022722.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 221367068157 in words is "two hundred twenty-one billion, three hundred sixty-seven million, sixty-eight thousand, one hundred fifty-seven".